Frequency Of Current Measurements; Peak Max; Inrush Ac Current Measurements; Dc Current Zero - Extech Instruments EX623A User Manual

5
Operation

5.7.2 Frequency of Current Measurements

When measuring AC current, the measured frequency is shown on the lower
area of the display.

5.7.3 Peak Max

When measuring AC current, press the PEAK button to activate the peak cap-
ture circuit. The display icon
ter will now display the measured signal's peak. Press the PEAK button again
to exit this mode.

5.7.4 Inrush AC Current Measurements

When measuring AC current you can capture inrush current. Follow the steps
above to set up a test, and continue with the steps below.
1. Long press the INRUSH button for 2 seconds to activate the inrush current
feature. INRUSH will appear on the display.
2. Switch on the circuit under test and view the inrush current reading on the
display.
3. To exit the inrush mode, long press the INRUSH button for 2 seconds.

5.7.5 DC Current Zero

The Zero feature removes offset values and improves accuracy for DC current
measurements. To perform a zero, select the DC current mode and, with no
conductor in the jaw, long press the ZERO button until the beeper sounds.
The display will zero. The offset value is now stored and removed from subse-
quent measurements.
#NAS100174; r. AA/97578/97616; en-US
will appear at the top of the LCD. The me-
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